The general appropriation bill shall embrace nothing but
appropriations for the expenses of the executive, legislative,
and judicial departments of the State, and for interest on the
public debt. The salary of no officer or employee of the State,
or any subdivision thereof, shall be increased in such bill, nor
shall any appropriation be made therein for any such officer or
employee, unless his employment and the amount of his salary,
shall have been already provided for by law. All other
appropriations shall be made by separate bills, each embracing
but one subject.